BANGOR, Maine — A small fire Wednesday night in the boiler room at the Bangor Auditorium sent one Bass Park employee to a local hospital for treatment of smoke inhalation symptoms, a Fire Department official said.

Assistant Fire Chief Rick Cheverie said he was unable to disclose the employee’s name, citing federal confidentiality rules. Cheverie said late Wednesday that he had not yet been able to confirm where the worker was taken, but believed it was St. Joseph Hospital.

Cheverie said the fire was reported at 9:23 p.m. and that crews from the department’s Central Station and Station 5 both went to the scene. He said that when firefighters arrived, they found light smoke in the building, which grew thicker as they neared the boiler room, where they found a cardboard box and a 5-gallon plastic bucket containing tools and parts on fire.

The fire’s cause, he said, is under investigation.

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“The boiler was not affected,” Cheverie said, adding that some electrical components near the box and bucket were burned. He estimated damage at about $500.

Cheverie said the fire was extinguished within minutes, but firefighters remained at the auditorium for about an hour to ventilate smoke from the building’s main lobby and nearby hallways.